X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FMC%2FMCAsmInfo.h;h=72d325f79c98f10c8e665b1d9dee9cc61e5ff0bc;hb=db3cc56e7018f6a553ba6bea8aeb6ee32aa121d8;hp=2ed5c0a47a2577d8b35aef1c9a3199abd1bba735;hpb=597a7664e1bbe2ea5f757eb6e853bd1d2fe98d6c;p=oota-llvm.git diff --git a/include/llvm/MC/MCAsmInfo.h b/include/llvm/MC/MCAsmInfo.h index 2ed5c0a47a2..72d325f79c9 100644 --- a/include/llvm/MC/MCAsmInfo.h +++ b/include/llvm/MC/MCAsmInfo.h @@ -13,11 +13,14 @@ // //===----------------------------------------------------------------------===// -#ifndef LLVM_TARGET_ASM_INFO_H -#define LLVM_TARGET_ASM_INFO_H +#ifndef LLVM_MC_MCASMINFO_H +#define LLVM_MC_MCASMINFO_H #include "llvm/MC/MCDirectives.h" +#include "llvm/MC/MCDwarf.h" +#include "llvm/MC/MachineLocation.h" #include +#include namespace llvm { class MCExpr; @@ -26,18 +29,39 @@ namespace llvm { class MCSymbol; class MCContext; - /// MCAsmInfo - This class is intended to be used as a base class for asm - /// properties and features specific to the target. namespace ExceptionHandling { - enum ExceptionsType { None, DwarfTable, DwarfCFI, SjLj, ARM }; + enum ExceptionsType { None, DwarfCFI, SjLj, ARM, Win64 }; + } + + namespace LCOMM { + enum LCOMMType { NoAlignment, ByteAlignment, Log2Alignment }; } + /// MCAsmInfo - This class is intended to be used as a base class for asm + /// properties and features specific to the target. class MCAsmInfo { protected: //===------------------------------------------------------------------===// // Properties to be set by the target writer, used to configure asm printer. // + /// PointerSize - Pointer size in bytes. + /// Default is 4. + unsigned PointerSize; + + /// CalleeSaveStackSlotSize - Size of the stack slot reserved for + /// callee-saved registers, in bytes. + /// Default is same as pointer size. + unsigned CalleeSaveStackSlotSize; + + /// IsLittleEndian - True if target is little endian. + /// Default is true. + bool IsLittleEndian; + + /// StackGrowsUp - True if target stack grow up. + /// Default is false. + bool StackGrowsUp; + /// HasSubsectionsViaSymbols - True if this target has the MachO /// .subsections_via_symbols directive. bool HasSubsectionsViaSymbols; // Default is false. @@ -84,6 +108,9 @@ namespace llvm { /// LabelSuffix - This is appended to emitted labels. const char *LabelSuffix; // Defaults to ":" + /// LabelSuffix - This is appended to emitted labels. + const char *DebugLabelSuffix; // Defaults to ":" + /// GlobalPrefix - If this is set to a non-empty string, it is prepended /// onto all global symbols. This is often used for "_" or ".". const char *GlobalPrefix; // Defaults to "" @@ -103,6 +130,13 @@ namespace llvm { const char *InlineAsmStart; // Defaults to "#APP\n" const char *InlineAsmEnd; // Defaults to "#NO_APP\n" + /// Code16Directive, Code32Directive, Code64Directive - These are assembly + /// directives that tells the assembler to interpret the following + /// instructions differently. + const char *Code16Directive; // Defaults to ".code16" + const char *Code32Directive; // Defaults to ".code32" + const char *Code64Directive; // Defaults to ".code64" + /// AssemblerDialect - Which dialect of an assembler variant to use. unsigned AssemblerDialect; // Defaults to 0 @@ -118,6 +152,15 @@ namespace llvm { /// symbol names. This defaults to true. bool AllowPeriodsInName; + /// AllowUTF8 - This is true if the assembler accepts UTF-8 input. + // FIXME: Make this a more general encoding setting? + bool AllowUTF8; + + /// UseDataRegionDirectives - This is true if data region markers should + /// be printed as ".data_region/.end_data_region" directives. If false, + /// use "$d/$a" labels instead. + bool UseDataRegionDirectives; + //===--- Data Emission Directives -------------------------------------===// /// ZeroDirective - this should be set to the directive used to get some @@ -143,6 +186,11 @@ namespace llvm { const char *Data32bitsDirective; // Defaults to "\t.long\t" const char *Data64bitsDirective; // Defaults to "\t.quad\t" + /// GPRel64Directive - if non-null, a directive that is used to emit a word + /// which should be relocated as a 64-bit GP-relative offset, e.g. .gpdword + /// on Mips. + const char *GPRel64Directive; // Defaults to NULL. + /// GPRel32Directive - if non-null, a directive that is used to emit a word /// which should be relocated as a 32-bit GP-relative offset, e.g. .gpword /// on Mips or .gprel32 on Alpha. @@ -170,6 +218,8 @@ namespace llvm { /// convention. bool HasMicrosoftFastStdCallMangling; // Defaults to false. + bool NeedsDwarfSectionOffsetDirective; + //===--- Alignment Information ----------------------------------------===// /// AlignDirective - The directive used to emit round up to an alignment @@ -208,14 +258,14 @@ namespace llvm { /// .long a - b bool HasAggressiveSymbolFolding; // Defaults to true. - /// HasLCOMMDirective - This is true if the target supports the .lcomm - /// directive. - bool HasLCOMMDirective; // Defaults to false. - - /// COMMDirectiveAlignmentIsInBytes - True is COMMDirective's optional + /// COMMDirectiveAlignmentIsInBytes - True is .comm's and .lcomms optional /// alignment is to be specified in bytes instead of log2(n). bool COMMDirectiveAlignmentIsInBytes; // Defaults to true; + /// LCOMMDirectiveAlignment - Describes if the .lcomm directive for the + /// target supports an alignment argument and how it is interpreted. + LCOMM::LCOMMType LCOMMDirectiveAlignmentType; // Defaults to NoAlignment. + /// HasDotTypeDotSizeDirective - True if the target has .type and .size /// directives, this is true for most ELF targets. bool HasDotTypeDotSizeDirective; // Defaults to true. @@ -269,27 +319,21 @@ namespace llvm { /// SupportsExceptionHandling - True if target supports exception handling. ExceptionHandling::ExceptionsType ExceptionsType; // Defaults to None - /// RequiresFrameSection - true if the Dwarf2 output needs a frame section - bool DwarfRequiresFrameSection; // Defaults to true. - /// DwarfUsesInlineInfoSection - True if DwarfDebugInlineSection is used to /// encode inline subroutine information. bool DwarfUsesInlineInfoSection; // Defaults to false. - /// DwarfSectionOffsetDirective - Special section offset directive. - const char* DwarfSectionOffsetDirective; // Defaults to NULL + /// DwarfUsesRelocationsAcrossSections - True if Dwarf2 output generally + /// uses relocations for references to other .debug_* sections. + bool DwarfUsesRelocationsAcrossSections; - /// DwarfRequiresRelocationForStmtList - True if DW_AT_stmt_list needs - /// a relocation to the correct offset. - bool DwarfRequiresRelocationForStmtList; // Defaults to true; + /// DwarfRegNumForCFI - True if dwarf register numbers are printed + /// instead of symbolic register names in .cfi_* directives. + bool DwarfRegNumForCFI; // Defaults to false; - // DwarfUsesLabelOffsetDifference - True if Dwarf2 output can - // use EmitLabelOffsetDifference. - bool DwarfUsesLabelOffsetForRanges; + //===--- Prologue State ----------------------------------------------===// - //===--- CBE Asm Translation Table -----------------------------------===// - - const char *const *AsmTransCBE; // Defaults to empty + std::vector InitialFrameState; public: explicit MCAsmInfo(); @@ -299,6 +343,27 @@ namespace llvm { static unsigned getSLEB128Size(int Value); static unsigned getULEB128Size(unsigned Value); + /// getPointerSize - Get the pointer size in bytes. + unsigned getPointerSize() const { + return PointerSize; + } + + /// getCalleeSaveStackSlotSize - Get the callee-saved register stack slot + /// size in bytes. + unsigned getCalleeSaveStackSlotSize() const { + return CalleeSaveStackSlotSize; + } + + /// isLittleEndian - True if the target is little endian. + bool isLittleEndian() const { + return IsLittleEndian; + } + + /// isStackGrowthDirectionUp - True if target stack grow up. + bool isStackGrowthDirectionUp() const { + return StackGrowsUp; + } + bool hasSubsectionsViaSymbols() const { return HasSubsectionsViaSymbols; } // Data directive accessors. @@ -315,6 +380,7 @@ namespace llvm { const char *getData64bitsDirective(unsigned AS = 0) const { return AS == 0 ? Data64bitsDirective : getDataASDirective(64, AS); } + const char *getGPRel64Directive() const { return GPRel64Directive; } const char *getGPRel32Directive() const { return GPRel32Directive; } /// getNonexecutableStackSection - Targets can implement this method to @@ -346,6 +412,10 @@ namespace llvm { return HasMicrosoftFastStdCallMangling; } + bool needsDwarfSectionOffsetDirective() const { + return NeedsDwarfSectionOffsetDirective; + } + // Accessors. // bool hasMachoZeroFillDirective() const { return HasMachoZeroFillDirective; } @@ -374,6 +444,11 @@ namespace llvm { const char *getLabelSuffix() const { return LabelSuffix; } + + const char *getDebugLabelSuffix() const { + return DebugLabelSuffix; + } + const char *getGlobalPrefix() const { return GlobalPrefix; } @@ -389,6 +464,15 @@ namespace llvm { const char *getInlineAsmEnd() const { return InlineAsmEnd; } + const char *getCode16Directive() const { + return Code16Directive; + } + const char *getCode32Directive() const { + return Code32Directive; + } + const char *getCode64Directive() const { + return Code64Directive; + } unsigned getAssemblerDialect() const { return AssemblerDialect; } @@ -401,6 +485,12 @@ namespace llvm { bool doesAllowPeriodsInName() const { return AllowPeriodsInName; } + bool doesAllowUTF8() const { + return AllowUTF8; + } + bool doesSupportDataRegionDirectives() const { + return UseDataRegionDirectives; + } const char *getZeroDirective() const { return ZeroDirective; } @@ -429,11 +519,13 @@ namespace llvm { bool hasAggressiveSymbolFolding() const { return HasAggressiveSymbolFolding; } - bool hasLCOMMDirective() const { return HasLCOMMDirective; } - bool hasDotTypeDotSizeDirective() const {return HasDotTypeDotSizeDirective;} bool getCOMMDirectiveAlignmentIsInBytes() const { return COMMDirectiveAlignmentIsInBytes; } + LCOMM::LCOMMType getLCOMMDirectiveAlignmentType() const { + return LCOMMDirectiveAlignmentType; + } + bool hasDotTypeDotSizeDirective() const {return HasDotTypeDotSizeDirective;} bool hasSingleParameterDotFile() const { return HasSingleParameterDotFile; } bool hasNoDeadStrip() const { return HasNoDeadStrip; } bool hasSymbolResolver() const { return HasSymbolResolver; } @@ -462,28 +554,26 @@ namespace llvm { } bool isExceptionHandlingDwarf() const { return - (ExceptionsType == ExceptionHandling::DwarfTable || - ExceptionsType == ExceptionHandling::DwarfCFI || - ExceptionsType == ExceptionHandling::ARM); - } - - bool doesDwarfRequireFrameSection() const { - return DwarfRequiresFrameSection; + (ExceptionsType == ExceptionHandling::DwarfCFI || + ExceptionsType == ExceptionHandling::ARM || + ExceptionsType == ExceptionHandling::Win64); } - bool doesDwarfUsesInlineInfoSection() const { + bool doesDwarfUseInlineInfoSection() const { return DwarfUsesInlineInfoSection; } - const char *getDwarfSectionOffsetDirective() const { - return DwarfSectionOffsetDirective; + bool doesDwarfUseRelocationsAcrossSections() const { + return DwarfUsesRelocationsAcrossSections; } - bool doesDwarfRequireRelocationForStmtList() const { - return DwarfRequiresRelocationForStmtList; + bool useDwarfRegNumForCFI() const { + return DwarfRegNumForCFI; } - bool doesDwarfUsesLabelOffsetForRanges() const { - return DwarfUsesLabelOffsetForRanges; + + void addInitialFrameState(const MCCFIInstruction &Inst) { + InitialFrameState.push_back(Inst); } - const char *const *getAsmCBE() const { - return AsmTransCBE; + + const std::vector &getInitialFrameState() const { + return InitialFrameState; } }; }